Implementation of pulse wave monitoring system using wearable PPG measurement system in daily life

The conventional Photoplethymosgraphy (PPG) measurements take place where patient is required to clip the photo sensor on the finger and therefore patient´s movement is restricted. In this paper, a wireless ear hook-type PPG measurement system using Bluetooth technology is proposed. The wireless ear hook-type PPG measurement system consists of a photo sensor, a PPG signal conditioning circuit, and an integrated Bluetooth transceiver. Photo sensor is placed on the ear lobe while there is a min i hooker attached to hold the sensor in place. PPG signal sensed from the earlobe is amplified through cascaded amplifiers analog circuits is amplified and then filter using band-pass technique. PPG signal is 12 bits sampling at frequency of 100Hz. An android application is developed for real time and continuous PPG signal monitoring.